Table 2.
Payments by Treatment Group Over 12 Months (U.S. Dollars).
| Payment type | Month | N | Intrathecal drug delivery (IDD) | Conventional medical management (CMM) | Mean difference IDD‐CMM | t‐test p value* | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| Mean | Median | Standard deviation | Mean | Median | Standard deviation | |||||
| Inpatient hospital | 2 | 73/73 | $36,779 | $10,479 | $104,790 | $35,033 | $23,136 | $38,332 | $1746 | 0.8938 |
| 6 | 50/39 | $47,692 | $15,614 | $128,009 | $41,251 | $28,163 | $39,985 | $6441 | 0.7629 | |
| 12 | 29/23 | $40,218 | $23,372 | $48,300 | $44,341 | $34,321 | $34,420 | ($4123) | 0.7312 | |
| Emergency department | 2 | 73/73 | $300 | $0 | $660 | $1152 | $622 | $1550 | ($852) | <0.0001* |
| 6 | 50/39 | $664 | $0 | $1684 | $1511 | $732 | $2371 | ($847) | 0.0521 | |
| 12 | 29/23 | $584 | $148 | $1133 | $2486 | $1416 | $3466 | ($1902) | 0.0076* | |
| Outpatient hospital | 2 | 73/73 | $13,163 | $6772 | $15,194 | $8884 | $2124 | $13,527 | $4279 | 0.0744 |
| 6 | 50/39 | $24,499 | $16,091 | $28,616 | $30,097 | $10,981 | $40,856 | ($5598) | 0.4497 | |
| 12 | 29/23 | $41,037 | $28,911 | $43,574 | $47,181 | $14,493 | $67,531 | ($6144) | 0.6929 | |
| Physician office | 2 | 73/73 | $3726 | $1184 | $6722 | $7260 | $1549 | $10,407 | ($3534) | 0.0160* |
| 6 | 50/39 | $13,829 | $4770 | $20,491 | $21,164 | $2149 | $31,501 | ($7335) | 0.1881 | |
| 12 | 29/23 | $27,004 | $5040 | $38,662 | $25,050 | $3664 | $45,984 | $1954 | 0.8685 | |
| Lab | 2 | 73/73 | $77 | $0 | $450 | $139 | $0 | $528 | ($62) | 0.4473 |
| 6 | 50/39 | $122 | $0 | $542 | $124 | $0 | $294 | ($2) | 0.9892 | |
| 12 | 29/23 | $112 | $0 | $420 | $123 | $0 | $290 | ($11) | 0.9192 | |
| Home health | 2 | 73/73 | $605 | $0 | $1374 | $715 | $0 | $1899 | ($110) | 0.6868 |
| 6 | 50/39 | $1784 | $508 | $5781 | $4701 | $0 | $19,815 | ($2917) | 0.3250 | |
| 12 | 29/23 | $3092 | $507 | $9243 | $4182 | $587 | $9967 | ($1090) | 0.6850 | |
| Hospice | 2 | 73/73 | $926 | $0 | $3982 | $232 | $0 | $1259 | $694 | 0.1573 |
| 6 | 50/39 | $2179 | $0 | $5222 | $12 | $0 | $76 | $2167 | 0.0113* | |
| 12 | 29/23 | $376 | $0 | $1388 | $1121 | $0 | $3587 | ($745) | 0.3089 | |
| Other misc. | 2 | 73/73 | $770 | $0 | $3397 | $434 | $0 | $1833 | $336 | 0.4588 |
| 6 | 50/39 | $1092 | $0 | $6014 | $344 | $0 | $763 | $748 | 0.4424 | |
| 12 | 29/23 | $315 | $0 | $768 | $713 | $0 | $1353 | ($398) | 0.1870 | |
| Medical subtotal | 2 | 73/73 | $56,346 | $34,481 | $106,518 | $53,849 | $43,907 | $38,530 | $2497 | 0.8509 |
| 6 | 50/39 | $91,863 | $63,900 | $129,831 | $99,204 | $84,203 | $71,314 | ($7341) | 0.7516 | |
| 12 | 29/23 | $112,739 | $91,331 | $91,548 | $125,198 | $119,840 | $73,165 | ($12,459) | 0.5974 | |
| Pharmacy | 2 | 73/73 | $1863 | $889 | $2401 | $1308 | $611 | $1767 | $555 | 0.1138 |
| 6 | 50/39 | $5898 | $2537 | $9296 | $4102 | $1875 | $7955 | $1796 | 0.3385 | |
| 12 | 29/23 | $13,668 | $4116 | $24,232 | $4404 | $2551 | $5791 | $9264 | 0.0795 | |
| Total | 2 | 73/73 | $58,209 | $35,370 | $55,157 | $44,518 | $3052 | 0.8181 | ||
| 6 | 50/39 | $97,761 | $66,437 | $103,306 | $86,078 | ($5545) | 0.8107 | |||
| 12 | 29/23 | $126,407 | $95,447 | $129,602 | $122,391 | ($3195) | 0.8979 | |||
*
Indicates a statistically significant difference at the p < 0.05 level for the time point(s) listed. No adjustments made for multiple comparisons.